Air Jet Loom

The Air jet loom is capable of very high speeds that uses an air jet to propel the filling yarn through the shed.Power ranges from 2.2W and above,it is available in both electrical and mechanical.Used in Weaving.

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Detailed Description for Air Jet Loom

 

Air jet weaving machines were invented in Czechoslovakia and later refined by the Swiss, Dutch, and Japanese were designed to retain the tension less aspect of the picking action of the water jet while eliminating the problems caused by the use of water.

The yarn is pulled from the supply package at a constant speed, which is regulated by the rollers, located with the measuring disk just in front of the yarn package. The measuring disk removes a length of yarn appropriate to the width of the fabric being woven. A clamp holds the yarn in an insertion storage area, where an auxiliary air nozzle forms it into the shape of a hairpin.

The main nozzle begins blowing air so that the yarn is set in motion as soon as clamp opens. The hairpin shape is stretched out as the yarn is blown into the guiding channel of the reed with the shed open. The vam is carried through the shed by the air currents emitted by the relay nozzles along the channel. The initial propulsive force is provided by a main nozzle. Electronically controlled relay nozzles provide additional booster jets to carry the yarn across the shed. The maximum effective width for air-jet weaving machines is about 355 cm. At the end of the each insertion cycle the clamp closes; the yarn is beaten in, and then cut, after the shed is closed. Again some selvage-forming device is required to provide stability to the edges of the fabric.
These weaving machines use a jet of air to propel the weft yarn through the shed at rates of up to 600 ppm. Date from manufacturers indicate that air-jet looms operate at speed up to 2200 meters of pick inserted per minute. They can weave multicolored yarns to make plaids and are available with both dobby and jacquard patterning mechanism.
Air jet weaving is more popular because the machines cost less to purchase, install, operate, and maintain than rapier or projectile weaving machines, and the air jet can be used on a broader variety of yarns than a water jet.

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